Specimen identification apparatus and method



SPECIMEN IDENTIFICATION APPARATUS AND METHOD Filed Jan. 15, 1962 H. B. BASKIN Nov. 24, 1964 :53 Sheets-Sheet 1 20:52 55 22 time 5:: z e 1 f 585: 3 232 IE: (IL WL n u u u n n Q m2 m as H is -35 55 $5.1 as; .1 5= FEE M2: 58 E: =3: 5; ,mm m 3mm -5:

2- I :55: .1 E .r L502 -52 2. mm K 2 m Y @E a M R a B .0 N [2 was; M A .2252 1 M 553% Y B \.(;|\(L L I.).\I\..{L u n H a Q 2: -amw $555 $555 120:??? wuss; 523% I Z252 E28 Nov. 24, 1964 FLI P-FLIP FIG.2

ll ll FIG.4

AMPLIFIER FIG.6

DELAY CIRCUIT H. B. BASKIN SPECIMEN IDENTIFICATION APPARATUS AND METHOD Filed Jan. 15, 1962 SINGLE-SHOT MULTIVIBRATOR 33 Sheets-Sheet 2 "AND" GATES I FIG.3

INVERTER FIG.5

LIMITER LIM FIG. 7

Nov. 24, 1964 H. B. BASKIN Filed Jan. 15, 1962 33 Sheets-Sheet 5 FIG." COUNTER 2 guoLusflETs 5 1 S 1 J? amour 116 R 0 s 1 22 81 RESETTOO R o 0 5- PULSE COUNTER DELAY s 1 R 0 "1' I amour v 1 R o a 0,5,10,15,86

READ-ONLY REGISTER F|G 13 420UTPUT 42 42 1 1 1 1 o T0 0 I P L w WRITE-READ REGISTER FIG.14 20UTPUT L2 2 1 0 1 o 1 o s R s 11 s 11 RESET T0 ALU'S 115551100 1 J 1 2INPUT 2' 2 Nov. 24, 1964 H. B. BASKIN 3,158,840

SPECIMEN IDENTIFICATION APPARATUS AND METHOD Filed Jan. 15. 1962 33 Sheets-Sheet 4 I 9 a: 225 2 10-: (58* EW w I I a. g 5| I l I 3 N 0::

o In

as O: E m as a 0 5 O: 0 1

a '5 E l l N, H 55 i SPECIMEN I 3.3 Sheets-Sheet 7 Filed Jan. 15, 1962 o N r 0 o o v n o 5 E J n N o N E W /I\ I N & o N J N o- E I I u o N v @N d m 0 2m o o N l o SPECIMEN IDENTIFICATION APPARATUS AND METHOD H. B. BASKIN Nov. 24, 1964 53 Sheets-Sheet 11 Filed Jan. 15,

NORMALIZED COMPARISON FIG.31

NORMALIZED"SECOND-DIFFERENCE" COMPARISON REFERENCE PATTERN 3 FIG. 32

H. B. BASKIN 3,158,840

SPECIMEN IDENTIFICATION APPARATUS AND METHOD Nov. 24, 1964 33 Sheets-Sheet 12 Filed Jan. 15, 1962 Bad m mmmd m N; o

Nmmd m mmmd m Qvmd XXX XXX OM06 m Ommd m 000;

.rzOu awn: OF (BEBE-m m0 mmsm w2 XX XXXXXXX XXXXXX XXXXXXXX XXXXX XXXXXXX XXXX XXXX XX XXX XXX XXX XXX XX XX XXXX XXXXXXXXXX XXXXXXXXXX XXXX XXX XX XX XX XX XXX XXX XXX XX XX XX XX XX XXXXX XXXXX XXX XXX XXX X PZOm 44mm:

H. B. BASKIN 3,158,840 SPECIMEN IDENTIFICATION APPARATUS AND METHOD Nov. 24, 1964 .33 Sheets-Sheet 13 Filed Jan. 15. 1962 .wwm 0 m Nmm 0 m 0mm 0 x x x x x x xx x x x x xxxxx x xxxxxxxxx xxxxxx xxxxxxxxxx x xxx xx xxxxx xxx xxxxx x xxxx x xxx x xxx x xxx xxx x xxx x xxx xxx x xxx xx xxxxxxxxxxxxxx x xxxx xxxxxx xxxxxxxxxx xx xx xxx xx xxxxx xx xxxxxx xxxxx xx xxx xxx xxx xx xx xx xxxxx xx xx xx x xxx xxx xxx x x xxx xxx xx xxx xxxx xxxxxxxx xxx xx xxxxxxxxxxx xx xx x x x xx x x xx x x x x xx x x xxx x x xxx x x xx xxxx xxxx xxxx x xx xxx x x x x xx x x x x xx x x xx x x xx xxx x xxxxxxxxx xxxx x x x x x x x x x x x x xxxxx xxx xxx x xx x x x 000; m Nwm O m Ommd Ann d1 Nov. 24, 1964 H. B. BASKIN 3,153,340

SPECIMEN IDENTIFICATION APPARATUS AND METHOD Filed Jan. 15, 1962 53 Sheets-Sheet 14 FIG. 340

f 243 r 25? f (x,y) SCANNER PHOTO H T REG COU NTERj TUBE I 207 D (x',y') Q ,255 S a CYCLE a CONTROL SHIFT REG HORIZONTAL SWEEP 52s GENERATOR SH 1 FT CONTROL VERTICAL SWEEP GENERATOR FIG. FIG, FIG. FIG 340 34b 34c 34d F I G. 34 1 Nov. 24, 1964 Filed Jan. 15, 1962 :53 Sheets-Sheet 15 FIG. 34b

L 4 i- I 1,400 1, 0 (406 a a a 0 400) 0 400) 0 (0,0) HBLREG -8LREG8- a REG-n8 l l 40? 405 414 40? 405 411 H 407 405 4414 D51(1,0J D52(1,0) D5 (1,0) a REG is a REG a -a REG 2 JV 1: 0 ,401) 4 0 m) 4 0 m) r a REGL-{8\- J a -nas-a a REGI-8\ u I 404 405 417 1 407 405 411 404 405 41? ii i 410 A h KERROR IN rE0000 m ERROR my SHIFT POSITION 1 POSITION 2 POSITIONm a H. B. BASKIN 3,158,840 SPECIMEN IDENTIFICATION APPARATUS AND METHOD Nov. 24, 1964 33 Sheets-Sheet 16 Filed Jan. 15. 1962 xly'] Nov. 24, 1964 H. B. BASKIN 3,158,840

SPECIMEN IDENTIFICATION APPARATUS AND METHOD Filed Jan. 15, 1962 53 Sheets-$heet 17 SHIFT REGISTER "I" I bIvIoIzR {422 "'T I 420 NORMALIZATION 4 FACTOR i,

REFERENCE 8 I COMPARATOR WORD STORAGE m 9 I oIvIoER E I| 2 0 0 u u 401 E qiI IFT I s s m n NORMALIZATION g T FACTOR z 9 sIII FT R E@IER'REJE C T' w LIL m 2 1 2 403 Z I) E 3 E f ERROR MATCH POSITION INDICATION I FSHIFT DIVIDER ERROR NORMALIZATION CORRECTION FACTOR r *REJECT |ND|CAT|QN woIIuI woRIIz WORD IDENTITY LOW J INDICATION M WORD5 Nov. 24, 1964 SPECIMEN Filed Jan. 15, 1962 H. B. BASKIN 33 Sheets-Sheet 18 204 D FIG. 350 I VERTICAL 231 SWEEP can PHOTO I SCANNER rune H a HORIZONTAL 205 I sign cm I 225 a 213 pm 235 B 1/2 i CLOCK SP1} PULSES coum u I RESET T0 0 PULSES COUNTER READ OUT AT 4s, 22 !\.1 0 Si R QR./225 J M 22I REM] OUT sjpuLsE COUNT PULSES B E/ COUNTER CLOCK PULSES RESET T0 '0' COUNT PULSES coumea READ our AT8 zn RESET T0 '0' c l I FIG. FIG. FIG. FIG. FIG. FIG. FIG. FIG. FIG. FIG.

35:: 35b 35c 35d 35e 35f 35g 35h 35s 351 FIG. 35

Nov. 24, 1964 H. B. BASKIN 3,158,840

SPECIMEN IDENTIFICATION APPARATUS AND METHOD Filed Jan. 15, 1962 33 Sheets-Sheet 19 RESET SHIFT REGISTER 245 F|G.35b

CLOCK 263 PULSES RESET 5 T0 '0' sm FT P ses o I RING COUNTER Nov. 24, 1964 H. B. BASKIN 3,158,840 SPECIMEN IDENTIFICATION APPARATUS AND METHOD Filed Jan. 15, 1962 33 Sheets-Sheet 20 2'REG|STER0 a 2' REGISTER-I 'I' REGISTER-i 418 8 REGISTER- UNIT DELA 421 SHIFT PULSES RING COUNTER RESET T0 0 :9

410 WORD START PULSE FIG. 35c 

1. A SPECIMEN IDENTIFICATION APPARATUS FOR IDENTIFYING A SPECIMEN WORD BASED ON ITS SIMILARITY TO REFERENCE WORDS CONTAINING REFERENCE PATTERNS COMPRISING, IN COMBINATION: INPUT MEANS INCLUDING A SURFACE LIGHT SCANNING DEVICE, AND A LIGHT-SENSITIVE DEVICE HAVING AN OUTPUT SIGNAL F(X,Y) INDICATIVE OF EACH SPECIMEN IN THE WORD; MEANS RESPONSIVE TO THE OUTPUT SIGNAL F(X, Y), FOR GENERATING AN AUTOCORRELATION FUNCTION DS(X'', Y'') OF EACH SPECIMEN INDICATION F(X, Y); MEANS FOR STORING AUTOCORRELATION FUNCTIONS DR(X'', Y'') OF EACH OF A PLURALITY OF REFERENCE PATTERNS R; MEANS RESPONSIVE TO THE FUNCTIONS DS(X'' Y'') AND DR(X'', Y'') FOR DEVELOPING THE NORMALIZED SUM OF THE POINT-BY-POINT PRODUCTS OF THE AUTOCORRELATION FUNCTION OF EACH SPECIMEN IN THE WORD AND THE AUTOCORRELATION FUNCTION OF EACH REFERENCE PATTERN ACCORDING TO 